Suppose that total sales in an industry in a particular year are $800 million and sales by the top four sellers are $50 million, $40 million, $30 million, and $30 million, respectively. we can conclude that
We can conclude that the top 4 sellers represent a 15% total volume of sales overall. The 4 sellers are the workhorses for getting this much sales and we can conclude that they will be treated well and compensated for doing such a great job.